From ca48767be48ca6a7536edf7b1d59f3246046d40e Mon Sep 17 00:00:00 2001
From: Marco Widmer <marco.widmer@bytesatwork.ch>
Date: Mon, 26 Aug 2024 18:18:45 +0200
Subject: [PATCH] boards: byteSENSI-L: add gnss support

Add support for the integrated u-blox M8C GNSS module.

Signed-off-by: Marco Widmer <marco.widmer@bytesatwork.ch>
---
 boards/bytesatwork/bytesensi_l/bytesensi_l.dts    | 15 +++++++++++++++
 .../bytesatwork/bytesensi_l/bytesensi_l_defconfig |  4 ++++
 .../bytesensi_l/bytesensi_l_pinctrl.dtsi          |  8 ++++----
 boards/bytesatwork/bytesensi_l/doc/index.rst      |  2 ++
 4 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/boards/bytesatwork/bytesensi_l/bytesensi_l.dts b/boards/bytesatwork/bytesensi_l/bytesensi_l.dts
index aacfd89ed16309..2054d6bd2e2e7a 100644
--- a/boards/bytesatwork/bytesensi_l/bytesensi_l.dts
+++ b/boards/bytesatwork/bytesensi_l/bytesensi_l.dts
@@ -25,6 +25,8 @@
 	aliases {
 		/* Alias for lora samples */
 		lora0 = &lora;
+		/* Alias for gnss samples */
+		gnss = &gnss;
 	};
 };
 
@@ -153,3 +155,16 @@
 		jedec-id = [c2 28 17];
 	};
 };
+
+&uart0 {
+	status = "okay";
+	current-speed = <9600>;
+	pinctrl-0 = <&uart0_default>;
+	pinctrl-1 = <&uart0_sleep>;
+	pinctrl-names = "default", "sleep";
+
+	gnss: u_blox_m8 {
+		status = "okay";
+		compatible = "gnss-nmea-generic";
+	};
+};
diff --git a/boards/bytesatwork/bytesensi_l/bytesensi_l_defconfig b/boards/bytesatwork/bytesensi_l/bytesensi_l_defconfig
index 80cef47e867819..24ab5af74060b2 100644
--- a/boards/bytesatwork/bytesensi_l/bytesensi_l_defconfig
+++ b/boards/bytesatwork/bytesensi_l/bytesensi_l_defconfig
@@ -7,6 +7,10 @@ CONFIG_ARM_MPU=y
 # enable GPIO
 CONFIG_GPIO=y
 
+# enable UART
+CONFIG_SERIAL=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+
 # Enable hardware stack protection
 CONFIG_HW_STACK_PROTECTION=y
 
diff --git a/boards/bytesatwork/bytesensi_l/bytesensi_l_pinctrl.dtsi b/boards/bytesatwork/bytesensi_l/bytesensi_l_pinctrl.dtsi
index 8b31ab2d3b04a7..47f19df7b41a23 100644
--- a/boards/bytesatwork/bytesensi_l/bytesensi_l_pinctrl.dtsi
+++ b/boards/bytesatwork/bytesensi_l/bytesensi_l_pinctrl.dtsi
@@ -7,15 +7,15 @@
 &pinctrl {
 	uart0_default: uart0_default {
 		group1 {
-			psels = <NRF_PSEL(UART_TX, 0, 11)>,
-				<NRF_PSEL(UART_RX, 0, 12)>;
+			psels = <NRF_PSEL(UART_RX, 0, 11)>,
+				<NRF_PSEL(UART_TX, 0, 12)>;
 		};
 	};
 
 	uart0_sleep: uart0_sleep {
 		group1 {
-			psels = <NRF_PSEL(UART_TX, 0, 11)>,
-				<NRF_PSEL(UART_RX, 0, 12)>;
+			psels = <NRF_PSEL(UART_RX, 0, 11)>,
+				<NRF_PSEL(UART_TX, 0, 12)>;
 			low-power-enable;
 		};
 	};
diff --git a/boards/bytesatwork/bytesensi_l/doc/index.rst b/boards/bytesatwork/bytesensi_l/doc/index.rst
index 5c9ca7f7b9ffc1..e50402fc0f1b26 100644
--- a/boards/bytesatwork/bytesensi_l/doc/index.rst
+++ b/boards/bytesatwork/bytesensi_l/doc/index.rst
@@ -29,6 +29,8 @@ Supported Features
 +-----------+------------+----------------------+
 | GPIO      | on-chip    | gpio                 |
 +-----------+------------+----------------------+
+| GPS       | u-blox     | gnss                 |
++-----------+------------+----------------------+
 | I2C(M)    | on-chip    | i2c                  |
 +-----------+------------+----------------------+
 | MPU       | on-chip    | arch/arm             |